Can lining machine



Dec. 15, 1931. D 5 WHITTALL 1,836,418

CAN LINING MACHINE Filed Jan. 12, 1929 3 Sheets-Sheet 1 INVENIOFL DAV] D-S-WH I'I'TALL ATTORNE *s Dec. 15, 1931. s, w 1,836,418

CAN LINING MACHINE Filed Jan. 12, 1929 5 Sheets-Sheet 2 INVEN'IOR DAV\D.S.WH \TTA LL BY a ATTORNEYS Dec. 15, 1931. D. s. WHITTALL CAN LINING MACHINE 1929 3 SheetsSheet 3 Filed Jan. 12

. I I I I I l 33: l I I l I I FIG. 5

INVENTOR DAvmsxvmTTALL BY FIGLG AT T ORNEYS Patented Dec. 15, 1931 UNEE FEQE DAVID s. WHITTALL, or MONTREAL, QUEBEC, CANADA can LIl\l'II\TG mourns Application filed January 12, 1929. Serial No. 332,055.

This invention relates to new and useful improvements in can lining machines and partlcularly to machines for'llning the edges of the can covers with a sealing compound such as liquid rubber and the object of the in through the machine.

In the construction of my machineQI provide a plurality of dipper arms which 'are rotatably slidablyimounted on suitable supporting means secured to the machine. A hopper is provided for feeding the can'covers to a position under two of the dipper arms. Mechanism is provided for raising and lowering the dipper arms and also rotating same so that they alternately dip intoa' reservoir containing the lining compound and transfer said fluid on to the marginal edges ofthe rectangular covers. The lined covers are then fed to drying mechanism. In the drawings which illustrate my invention:

Figure 1 is a side elevationof my improved can lining machine.

Figure 2 is an end'elevation of the machine shown in Figure Figure 3 is a plan view 'of'the dipper arm rotating means.

Figure 4 is an enlarged view of the dipper arm. V

Figure 5 is an end side elevation of the dipper.

' Figure 6 is a in Figure 4.

Figure 7 is a plan view of the pan for holding the sealing compound.

Referring more particularly to the drawings, 11 designates the bed of the machine and mounted .in suitable bearings formed therein is the driving shaft 13. Slidably mounted on the shaft and adapted to rotate therewith isthe toothed clutch 14 which is adaptedto engage with theteeth'formed in the side of the wheel 15 when pushed towards same. The. clutch operating mechanism consists of'a'handle 16 pit otally secured to the frame and connected 'by aglinlr17- to a pivotally mounted clutch lfinger 189 The plan view of the dipper shown curved end 19 of the finger is adapted to press the clutch into and out of engagement with the clutch teeth on the wheel. Secured to shaft 13 is the bevel wheel 20 which meshes with bevel wheel 21 secured to the vertical shaft 22, to the top end of which is secured a cam 23. This cam engages with one end of alever 24 pivotally mounted at its approximate centre on the bracket 25. The other end of this lever engages with the reoess26 in a collar 27 secured to the end of the dipper arm spindle28 which is slidably mounted in a bearing 29secured to the frame 30. The motion of the lever. 24: is such that on rotation of the cam thespindle 28 slides upwardlyand downwardly in'the bearing 29. Secured to the lower end of the spindle are the dipper arms 30.

In the drawings,' -four arms are shown posi tioned at right angles to each other". A detail of the end of one of the arms is shown in Figures 4-6inclusive It will be seen that a boss 30a is formed on each armjand mounted in said bosses are the sleeves 31. Attached by any suitable means to the sleeves are the dippers 32. Passing through and slidably mounted in the sleeves are the large headed pins 33, the upper ends 3 1 of which are secured to levers 35. These levers are pivotally mounted intermediate their ends on boss 41 secured to the spindle 28. This spindle is rotated by any suitable means to turn the armsthrough aquarter of a revolution for every up and down movement of the dippers. The rotating movement is transmit-ted from a bevel wheel 42 secured to the driving shaft and meshing with a bevel wheel 43 secured to one end of a vertical spindle 4%, the other end of which has secured thereto a toothed wheel45'. The wheel 45 meshes with awheel 46 which carries an eccentrioand upwardly projecting pin 47 adapted to engage with the slots l8 formed in a disc 49 secured to the upper end of the spindle 28. There are four slots which operat the spindle by what is commonly known as the Geneva movement.

The dippers are adapted to alternately dip into the pans 50 on each side of the machine and on to the marginal edge of the covers being fed through the machine by suitable mechanism (not disclosed) from a storage hopper 51. The pans 50 contain a liquid sealing compound and to keep the compound at a predetermined level, a feed bottle 52 is provided with its neck projecting downward with end 53 touching the fluid.

After the marginal edges are coated with the sealing solution, the can covers are suitably delivered to a drying column 54 containing any suitable form of conveyor, which is generally indicated at 55 and may be driven from the driving shaft 13 through suitable gearing.

In operation, the can covers which may be of rectangular form are fed one at a time through the machine. The driving shaft is set in motion by any suitable means to raise and lower the dipper arms and rotate same. lVe will take the position in which two of the clippers have been dipped in the fluidand have been rotated to overlie a pair of can covers which are spaced so that there is one lined cover and one unlined therebetween. It will be seen that there will be two undipped arms above each of the dipper pans. The cam in its rotation causes the dipper arms to travel downwardly simultaneously. l ve will take the action of one of the clippers entering the fluid in the pans. The head of the pin 33 enters a recess 55 positioned in the centre of the pans. The level of the liquid in the pans is such that the edge of the dipper, which is of the same shape as the marginal edge of the can cover, enters the fluid and is covered by a thin layer of same. At the same time as this is occurring, the dipper arms above the covers descend and the large head of the pin 83 contacts with the cover and moves the levers to cause the dippers to descend and touch the marginal edge of the can covers and transfer some of the fluid thereto. In raising the dippers from contact with the cover, bubbles are often formed and to break the bubble a stream or jet of air or other means is directed between the lower edge of the dipper and the 5 marginal edge of the cover from pipes 56. It

will be readily seen that if there are no covers in position when the dipper descends, the dipper will not touch the bed of the machine as the head of the pin passes into a suitable opening 57 and the levers do not move the dippers downwardly through the movement of the pin.

Two can covers are simultaneously lined by the descending dippers while the other two dippers are being covered with the sealing or lining compound. When the dippers are raised clear, the covers are moved one at a time into the drier. The spring cushions the movement of the dippers The device is simple in operation and provides an easy means for lining can cover edges of any shape with a sealing compound as the shape of the dippers is made to suit the shape of th can covers.

Having thus described my invention, what I claim is 1. In a can lining machine, a plurality of reservoirs for sealing fluid, a plurality of dippers and means to operate the dippers to alternately lift the fluid from the reservoirs and transfer it to the marginal edges of the can covers as the latter are positioned between the reservoirs.

2. In a can lining machine, a plurality of reservoirs for sealing fluid, said reservoirs being spaced apart to provide for the passage of can covers therebetween, a plurality of dippers and means to operate the dippers to alternately lift fluid from the reservoirs and transfer same to the marginal edge of the covers, said dippers being positioned so that some of the dippers are entering the reservoirs while the remainder are contacting with the marginal edges of the covers.

3. A can lining machine according to claim 2 having air jets directedbetween the contacting surfaces of the covers and the dippers to prevent air bubbles forming therebetween.

4. In a can lining machine, a pair of reservoirs for a sealing fluid, four dippers slidably mounted thereabove, said reservoirs being spaced apart to provide for positioning of can covers therebetween, means to rotate the said dippers and raise and lower same so that they alternately dip into the fluid and are brought into contact, two at a time, with the can covers. p

5. In a can lining machine, a pair of reservoirs for a sealing fluid, said reservoir being spaced apart to provide for the positioning of can covers t-herebetween, four dippers slidably and rotatably mounted above the reservoirs, means adapted to alternately cause the dippers to contact with the fluid in the reservoirs and contact with the marginal edges of the covers and drying mechanism adapted to receive the lined covers. 7

6, In a can lining machine, a machine bed, reservoirs for sealing fluid mounted at the sides thereof, means to control the level of the fluid in the reservoirs, a spindle rotatably and slidably mounted in bearings above the bed of the machine, a plurality of dippers secured to said spindle cam means for raising and lowering the dippers, means for rotating the dippers, said raising and lowering means and rotating meansbeing driven from a common source.

7. A can lining machine according to claim tit) 6 including a storage hopper and a drier positioned at opposite sides of the machine, the said reservoirs being spaced apart to permit the can covers to be passed therebetween from the hopper to the drier. i

8. A machine as recited in claim 6, in Which the means for rotating the dippers comprises a pair of rotary discs one of which is fixed to the said spindle and a pin carried by one disc and operating in intersecting grooves formed in the other disc.

9. A can lining machine including reservoirs for containing a sealing fluid, a plurality of pairs of dippers and means for imparting rotary and reciprocating movement to all of said clippers so that the dippers of one pair are simultaneously dipped in the reservoirs While the dippers of the remaining pair are simultaneously applied to the work.

In Witness whereof, I have hereunto set my hand.

' DAVID S. WHITTALL. 

